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Surface-induced phase separation of binary polymer blends on the chemically patterned substrate
The patterned substrate with alternating SiO2 and octadecyltrichlorosilane (OTS) self-assembled monolayers (SAM) was used to induce phase separation of PS (polystyrene) and PVP (poly2-vinylpyridine) binary polymer blend films. The PS- and PVP- phase were situated on the OTS and SiO2 domains, respectively. It revealed that even though the characteristic length scales (D) of phase separation were di...
http://www.polymer.cn//ss/zhangzexin/publicationsshow_1872.html |
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Ordered droplet formation by thin polymer film dewetting on a stripe-patterned substrate
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http://www.polymer.cn//ss/zhangzexin/publicationsshow_1869.html |
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How to form regular polymer microstructures by surface-pattern-directed dewetting
The substrates with regular patterns of self-assembly monolayers (SAMs) produced by microcontact printing with octadecyltrichlorosilane (OTS) was employed to direct thin polystyrene dewetting to fabricate ordered micrometer scale pattern. The pattern sizes and pattern fashion can be manipulated by controlling the experimental parameters. The pattern formation mechanisms have been discussed. The de...
http://www.polymer.cn//ss/zhangzexin/publicationsshow_1867.html |
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Experimental phase diagram of a model colloid-polymer mixture in the protein limit
Sterically stabilized silica nanoparticles were synthesized, and turbidity measurements confirmed that they behaved as hard spheres in cyclohexane. Poly(isoprene) was added to give mixtures in the protein limit with a polymer coil/colloid radius ratio of 4.8. Their phase behavior under good solvent conditions was studied experimentally. The critical colloid volume fraction was φ = 0.13, wherea...
http://www.polymer.cn//ss/zhangzexin/publicationsshow_1865.html |
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Tunable emission from composite polymer nanoparticles based on resonance energy transfer
We have fabricated semiconducting polymer nanoparticles from poly[2-methoxy-5-(2'-ethyl-hexyloxy)-p-phenylene vinylene] (MEH-PPV), poly(N-vinylcarbazole) (PVK), and their blends via a reprecipitation method. When excited by the peak wavelength of the PVK absorption band, the polymer nanoparticles show enhanced emission from the MEH-PPV component. The emission color can be tuned from blue to orange...
http://www.polymer.cn//ss/kongfan/publicationsshow_1858.html |
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Mechanism of in Situ Compatibilization and Degradation by Friedel-Crafts Alkylation Reaction for Polymer Blends
Z. Guo, Z. Fang. Mechanism of in Situ Compatibilization and Degradation by Friedel-Crafts Alkylation Reaction for Polymer Blends, Chemical Journal of Chinese Universities-Chinese, 2009.9, 30(9): 1898-1903
http://www.polymer.cn//ss/zpfang/publicationsshow_1851.html |
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Patterning thin polymer films by surface-directed dewetting and pattern transfer
The pattern evolution processes of thin polystyrene (PS) film on chemically patterned substrates during dewetting have been investigated experimentally. The substrates have patterns of self-assembly monolayers produced by microcontact printing with octadecyltrichlorosilane. Optical microscopy and atomic force microscopy images reveal that ordered micrometer scale pattern can be created by surface ...
http://www.polymer.cn//ss/zhangzexin/publicationsshow_1848.html |
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Induced crystallization and swelling behavior of polymer in supercritical Carbon Dioxide
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http://www.polymer.cn//ss/caoguiping/publicationsshow_1699.html |
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High-throughput solubility measurements of polymer libraries in supercritical carbon dioxide.
A new method was developed which allows rapid parallel soly. measurements for libraries of materials in supercrit. fluids (SCFs). The technique was used to evaluate the soly. of a mixed library of 100 synthetic polymers including polyesters, polycarbonates, and vinyl polymers.
http://www.polymer.cn//ss/tanbien/publicationsshow_1560.html |
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Biodegradable nanofibrous membrane of zein/silk fibroin by electrospinning, Polymer International, 2009, 58(4), 396 – 402.
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http://www.polymer.cn//ss/lixs/publicationsshow_1498.html |
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